Overview
The MAX178BEWG+T is a calibrated, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is part of the MAX178 family, which includes a precision voltage reference, track-and-hold circuitry, and a conversion clock. The MAX178BEWG+T is designed to provide high accuracy and reliability, making it suitable for a variety of applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Analog Input Range | 0V to +5V (with +5V reference) |
| Internal Reference Accuracy | ±0.3% (MAX178A), external reference for MAX178B |
| Conversion Time | 3µs |
| Sampling Rate | Up to 75ksps |
| Package Type | 24-pin SOIC (Small-Outline IC, Wide) |
| Operating Temperature Range | Full operating temperature range without external adjustments |
Key Features
- Complete, calibrated 12-bit ADC with precision voltage reference, track-and-hold, and conversion clock.
- Internal calibration circuitry maintains true 12-bit performance over the full operating temperature range without external adjustments.
- Auto-zero cycle reduces zero errors to typically below 100μV.
- CHIP SELECT, READ, and WRITE inputs for easy microprocessor interfacing without additional logic.
- 2-byte, 12-bit conversion data provided over an 8-bit three-state output bus.
- Two converter busy flags facilitate polling of the converter's status.
Applications
The MAX178BEWG+T is suitable for various applications that require precise analog-to-digital conversion, such as:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Data acquisition systems.
Q & A
- What is the resolution of the MAX178BEWG+T ADC?
The MAX178BEWG+T has a resolution of 12 bits.
- What is the analog input range of the MAX178BEWG+T?
The analog input range is 0V to +5V when using a +5V reference.
- How accurate is the internal reference of the MAX178A?
The internal reference accuracy of the MAX178A is ±0.3%.
- What is the conversion time of the MAX178BEWG+T?
The conversion time is 3µs.
- What is the sampling rate of the MAX178BEWG+T?
The sampling rate is up to 75ksps.
- What type of package does the MAX178BEWG+T come in?
The MAX178BEWG+T comes in a 24-pin SOIC (Small-Outline IC, Wide) package.
- Does the MAX178BEWG+T require external adjustments for temperature compensation?
No, the MAX178BEWG+T maintains true 12-bit performance over the full operating temperature range without external adjustments.
- How does the auto-zero cycle improve the performance of the MAX178BEWG+T?
The auto-zero cycle reduces zero errors to typically below 100μV.
- What interfaces are available for microprocessor communication with the MAX178BEWG+T?
The MAX178BEWG+T includes CHIP SELECT, READ, and WRITE inputs for easy microprocessor interfacing without additional logic.
- How is the conversion data output from the MAX178BEWG+T?
The conversion data is provided over an 8-bit three-state output bus in 2-byte format.
